smokeless

adj [usu attrib 通常作定语] 1 burning with little or no smoke （燃烧时）无烟的: smokeless fuel 无烟燃料. 2 free from smoke （环境）无烟的: a smokeless zone, ie an area where smoke is prohibited 禁止吸烟区.

smelly, smelt, smidgen (also smidgin), smile, smile at sb., smile on, smirch, smirk, smite, smith, smithereens, smithy, smitten, smock, smocking, smog, smoke, smoke-bomb (also `smoke-grenade), smoke-screen, smoke-stack, smoker, smokiness, smoking, smoking-jacket, smoking-room, smoky, smolder, smooch, smooth, smooth out, smooth over, smooth-tongued (also ,smooth-spoken), smoothie (also smoothy), smoothly, smoothness, smorgasbord, smote, smother, smoulder (US smolder), smudge,